package ms.platform.util;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.security.GeneralSecurityException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLException;
import javax.net.ssl.SSLSession;
import javax.net.ssl.SSLSocket;

import org.apache.commons.io.IOUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.conn.ssl.SSLContextBuilder;
import org.apache.http.conn.ssl.TrustStrategy;
import org.apache.http.conn.ssl.X509HostnameVerifier;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import net.sf.json.JSONObject;

@SuppressWarnings("deprecation")
public class HttpUtils {
	public final static Logger logger = LoggerFactory
			.getLogger(HttpUtils.class);
	private static PoolingHttpClientConnectionManager connMgr;
	private static RequestConfig requestConfig;
	private static final int MAX_TIMEOUT = 7000;
	private final static int BUFFER = 1024;

	static {
		// 设置连接池
		connMgr = new PoolingHttpClientConnectionManager();
		// 设置连接池大小
		connMgr.setMaxTotal(100);
		connMgr.setDefaultMaxPerRoute(connMgr.getMaxTotal());

		RequestConfig.Builder configBuilder = RequestConfig.custom();
		// 设置连接超时
		configBuilder.setConnectTimeout(MAX_TIMEOUT);
		// 设置读取超时
		configBuilder.setSocketTimeout(MAX_TIMEOUT);
		// 设置从连接池获取连接实例的超时
		configBuilder.setConnectionRequestTimeout(MAX_TIMEOUT);
		// 在提交请求之前 测试连接是否可用
		configBuilder.setStaleConnectionCheckEnabled(true);
		requestConfig = configBuilder.build();
	}

	/**
	 * 发送 GET 请求（HTTP），不带输入数据
	 * 
	 * @param url
	 * @return
	 */
	public static String doGet(String url) {
		return doGet(url, new HashMap<String, Object>());
	}

	/**
	 * 发送 GET 请求（HTTP），K-V形式
	 * 
	 * @param url
	 * @param params
	 * @return
	 */
	public static String doGet(String url, Map<String, Object> params) {
		String apiUrl = url;
		StringBuffer param = new StringBuffer();
		int i = 0;
		for (String key : params.keySet()) {
			if (i == 0) {
				param.append("?");
			} else {
				param.append("&");
			}
			param.append(key).append("=").append(params.get(key));
			i++;
		}
		apiUrl += param;
		String result = null;
		CloseableHttpClient httpclient = new DefaultHttpClient();
		try {
			HttpGet httpPost = new HttpGet(apiUrl);
			HttpResponse response = httpclient.execute(httpPost);
			int statusCode = response.getStatusLine().getStatusCode();
			HttpEntity entity = response.getEntity();
			if (entity != null) {
				InputStream instream = entity.getContent();
				result = IOUtils.toString(instream, "UTF-8");
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		return result;
	}

	/**
	 * 发送 POST 请求（HTTP）下载文件，K-V形式
	 * 
	 * @param apiUrl
	 *            :API接口URL
	 * @param params
	 *            :调用银行存管系统接口的参数
	 * @param fileParams
	 *            :读取文件参数
	 * @return
	 */
	public static void doPost(String apiUrl, Map<String, Object> params,
			Map<String, String> fileParams) {
		CloseableHttpClient httpClient = HttpClients.createDefault();
		HttpPost httpPost = new HttpPost(apiUrl);
		CloseableHttpResponse response = null;

		try {
			httpPost.setConfig(requestConfig);
			List<NameValuePair> pairList = new ArrayList<>(params.size());
			for (Map.Entry<String, Object> entry : params.entrySet()) {
				NameValuePair pair = new BasicNameValuePair(entry.getKey(),
						entry.getValue().toString());
				pairList.add(pair);
			}
			httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset
					.forName("UTF-8")));
			// 执行连接，返回响应
			response = httpClient.execute(httpPost);
			// 处理响应结果
			if (response == null) {
				throw new RuntimeException("HttpConn ,响应获取失败！");
			}
			setResponseInfo(response, fileParams);

		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (response != null) {
				try {
					EntityUtils.consume(response.getEntity());
				} catch (IOException e) {
					e.printStackTrace();
					logger.error(e.getMessage());
				}
			}
		}

	}

	/**
	 * 发送 POST 请求（HTTP），K-V形式
	 * 
	 * @param apiUrl
	 *            API接口URL
	 * @param params
	 *            参数map
	 * @return
	 */
	public static String doPost(String apiUrl, Map<String, Object> params) {
		CloseableHttpClient httpClient = HttpClients.createDefault();
		String httpStr = null;
		HttpPost httpPost = new HttpPost(apiUrl);
		CloseableHttpResponse response = null;

		try {
			httpPost.setConfig(requestConfig);
			List<NameValuePair> pairList = new ArrayList<>(params.size());
			for (Map.Entry<String, Object> entry : params.entrySet()) {
				NameValuePair pair = new BasicNameValuePair(entry.getKey(),
						entry.getValue().toString());
				pairList.add(pair);
			}
			httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset
					.forName("GBK")));
			response = httpClient.execute(httpPost);

			HttpEntity entity = response.getEntity();
			// 返回状态
			int resCode = response.getStatusLine().getStatusCode();
			String resStatues = response.getStatusLine().toString();
			long resLength = entity.getContentLength();

			httpStr = EntityUtils.toString(entity, "UTF-8");
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (response != null) {
				try {
					EntityUtils.consume(response.getEntity());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		return httpStr;
	}

	/**
	 * 发送 POST 请求（HTTP），JSON形式
	 * 
	 * @param apiUrl
	 * @param json
	 *            json对象
	 * @return
	 */
	public static String doPost(String apiUrl, String json) {
		CloseableHttpClient httpClient = HttpClients.createDefault();
		String httpStr = null;
		HttpPost httpPost = new HttpPost(apiUrl);
		CloseableHttpResponse response = null;
		try {
			httpPost.setConfig(requestConfig);
			StringEntity stringEntity = new StringEntity(json.toString(),
					"UTF-8");// 解决中文乱码问题
			stringEntity.setContentEncoding("UTF-8");
			stringEntity.setContentType("application/json");
			httpPost.setEntity(stringEntity);
			response = httpClient.execute(httpPost);
			HttpEntity entity = response.getEntity();
			httpStr = EntityUtils.toString(entity, "UTF-8");
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if (response != null) {
				try {
					EntityUtils.consume(response.getEntity());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		return httpStr;
	}

	/**
	 * 发送 SSL POST 请求（HTTPS），K-V形式
	 * 
	 * @param apiUrl
	 *            API接口URL
	 * @param params
	 *            参数map
	 * @return
	 */
	public static Map doPostSSL(String apiUrl, Map<String, Object> params,
			Map<String, String> fileParams) {
		CloseableHttpClient httpClient = HttpClients.custom()
				.setSSLSocketFactory(createSSLConnSocketFactory())
				.setConnectionManager(connMgr)
				.setDefaultRequestConfig(requestConfig).build();
		HttpPost httpPost = new HttpPost(apiUrl);
		CloseableHttpResponse response = null;
		Map result = null;
		try {
			httpPost.setConfig(requestConfig);
			List<NameValuePair> pairList = new ArrayList<NameValuePair>(
					params.size());
			for (Map.Entry<String, Object> entry : params.entrySet()) {
				NameValuePair pair = new BasicNameValuePair(entry.getKey(),
						entry.getValue().toString());
				pairList.add(pair);
			}
			httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset
					.forName("utf-8")));
			response = httpClient.execute(httpPost);
			int statusCode = response.getStatusLine().getStatusCode();
			if (statusCode != HttpStatus.SC_OK) {
				return null;
			}
			HttpEntity entity = response.getEntity();
			// 处理响应结果
			if (entity == null) {
				return null;
			}
			// httpStr = EntityUtils.toString(entity, "utf-8");
			setResponseInfo(response, fileParams);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (response != null) {
				try {
					EntityUtils.consume(response.getEntity());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		return result;
	}

	/**
	 * 发送 SSL POST 请求（HTTPS），K-V形式
	 * 
	 * @param apiUrl
	 *            API接口URL
	 * @param params
	 *            参数map
	 * @return
	 */
	@SuppressWarnings({ "rawtypes", "unchecked" })
	public static Map doPostSSL(String apiUrl, Map<String, Object> params) {
		CloseableHttpClient httpClient = HttpClients.custom()
				.setSSLSocketFactory(createSSLConnSocketFactory())
				.setConnectionManager(connMgr)
				.setDefaultRequestConfig(requestConfig).build();
		HttpPost httpPost = new HttpPost(apiUrl);
		CloseableHttpResponse response = null;
		String httpStr = null;
		Map result = new HashMap<>();
		try {
			httpPost.setConfig(requestConfig);
			List<NameValuePair> pairList = new ArrayList<NameValuePair>(
					params.size());
			for (Map.Entry<String, Object> entry : params.entrySet()) {
				NameValuePair pair = new BasicNameValuePair(entry.getKey(),
						entry.getValue().toString());
				pairList.add(pair);
			}
			httpPost.setEntity(new UrlEncodedFormEntity(pairList, Charset
					.forName("utf-8")));
			response = httpClient.execute(httpPost);
			int statusCode = response.getStatusLine().getStatusCode();
			if (statusCode != HttpStatus.SC_OK) {
				return null;
			}
			HttpEntity entity = response.getEntity();
			if (entity == null) {
				return null;
			}
			// 返回状态
			// int resCode = response.getStatusLine().getStatusCode();
			String resStatues = response.getStatusLine().toString();
			int dataFrom = 2;
			httpStr = EntityUtils.toString(entity, "utf-8");
			JSONObject jasonObject = JSONObject.fromObject(httpStr);
			Map map = (Map) jasonObject;
			Date date = new Date();
			result.put("dataFrom", dataFrom);
			result.put("responseStatus", map.get("code"));
			result.put("responseDescription", map.get("description"));
			result.put("requestStatus", resStatues);
			result.put("requestTime", date);
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			if (response != null) {
				try {
					EntityUtils.consume(response.getEntity());
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
		}
		// System.out.println(httpStr);
		return result;
	}

	/**
	 * 创建SSL安全连接
	 * 
	 * @return
	 */
	private static SSLConnectionSocketFactory createSSLConnSocketFactory() {
		SSLConnectionSocketFactory sslsf = null;
		try {
			SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(
					null, new TrustStrategy() {

						@Override
						public boolean isTrusted(X509Certificate[] chain,
								String authType) throws CertificateException {
							return true;
						}
					}).build();
			sslsf = new SSLConnectionSocketFactory(sslContext,
					new X509HostnameVerifier() {

						@Override
						public boolean verify(String arg0, SSLSession arg1) {
							return true;
						}

						@Override
						public void verify(String host, SSLSocket ssl)
								throws IOException {
						}

						@Override
						public void verify(String host, X509Certificate cert)
								throws SSLException {
						}

						@Override
						public void verify(String host, String[] cns,
								String[] subjectAlts) throws SSLException {
						}
					});
		} catch (GeneralSecurityException e) {
			e.printStackTrace();
		}
		return sslsf;
	}

	/**
	 * 调用银行存管系统接口参数
	 * 
	 * @param serviceName
	 *            :接口名称
	 * @param reqData
	 *            :请求数据
	 * @param sign
	 *            :签名
	 */
	public static Map<String, Object> commonsParmeter(String serviceName,
			String reqData, String sign, String platformNo) {
		Map<String, Object> parmMap = new HashMap<>();
		parmMap.put("serviceName", serviceName);
		// parmMap.put("platformNo", RemoteServiceConfig.PLATFORM_NO);
		parmMap.put("platformNo", platformNo);
		parmMap.put("reqData", reqData);
		parmMap.put("keySerial", "1");
		parmMap.put("sign", sign);
		return parmMap;
	}

	/**
	 * 调用接口处理响应结果
	 * 
	 * @param response
	 */
	@SuppressWarnings({ "unchecked", "rawtypes" })
	public static void setResponseInfo(CloseableHttpResponse response,
			Map<String, String> fileParams) {

		HttpEntity entity = response.getEntity();
		// 返回状态
		int resCode = response.getStatusLine().getStatusCode();
		long resLength = entity.getContentLength();
		String resStatues = response.getStatusLine().toString();
		InputStream is = null;
		FileOutputStream out = null;
		FileUtil.createDirectory(fileParams.get("zipFileDir"));// 创建文件路径
		File bankFile = new File(fileParams.get("fileNamePath"));
		try {
			is = entity.getContent();
			out = new FileOutputStream(bankFile);
			byte[] b = new byte[BUFFER];
			int len = 0;
			while ((len = is.read(b)) != -1) {
				out.write(b, 0, len);
			}
			is.close();
			out.close();
		} catch (UnsupportedOperationException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * 发送 POST 请求（HTTP），K-V形式
	 * 
	 * @param apiUrl
	 *            API接口URL
	 * @param params
	 *            参数map
	 * @return
	 * @throws Exception 
	 */
	public static String doPost(String apiUrl, String xmlString,String charset) throws Exception {
		String resoutStr = "";
		if(StringUtils.isNotBlank(apiUrl)&&StringUtils.isNotBlank(xmlString)){
			CloseableHttpClient httpClient = new DefaultHttpClient();
			HttpPost httpPost = new HttpPost(apiUrl);
			HttpEntity entity = new StringEntity(xmlString, charset);
			try {
			httpPost.setEntity(entity);
			HttpResponse response = httpClient.execute(httpPost);
			HttpEntity httpEntity = response.getEntity();
			if(entity!=null){
				resoutStr = EntityUtils.toString(httpEntity, charset);
				resoutStr = resoutStr.replaceAll("<br/>", "");
			}
			} catch (Exception e) {
				throw e;
			} finally {
				httpClient.getConnectionManager().shutdown();
			}
		}
		return resoutStr;
	}
}
